Riot allows teams to communicate across a wide range of collaboration apps. If some team members use Riot while others use IRC, Slack or Gitter, Riot will allow these team members to seamlessly work together. Riot offers the richest network of communication bridges. Riot lets you run your own server, and provides users and teams with the most advanced crypto ratchet technology available today for a decentralized secure Internet. Riot is entirely open source: all the code is published on GitHub (Apache License) for anyone to see and extend. This means teams can customize or contribute to the code and everyone can benefit from the speed of community innovation. Riot is built on top of Matrix.

Grafana provides a powerful and elegant way to create, explore, and share dashboards and data with your team and the world.

Grafana is most commonly used for visualizing time series data for Internet infrastructure and application analytics but many use it in other domains including industrial sensors, home automation, weather, and process control.

Open source continuous delivery server to model and visualize complex workflows with ease. Automate and streamline your build-test-release cycle for reliable, continuous delivery of your product.

Passbolt is a free and open source password manager that allows team members to store and share credentials securely. Passbolt is free, open source and respectful of your privacy. It is also extensible thanks to its restful API. It's based on OpenPGP and has a Firefox extension.

Roots helps you build better WordPress sites faster.
Open-source tools for WordPress application development.

• LEMP stack
• Project boilerplate
• Starter theme

Mailtrain is a self hosted newsletter application built on Node.js (v5+) and MySQL (v5.5+ or MariaDB). Mailtrain supports subscriber list management, list segmentation, custom fields, email templates, large CSV list import files, etc.

Portia is a tool that allows you to visually scrape websites without any programming knowledge required. With Portia you can annotate a web page to identify the data you wish to extract, and Portia will understand based on these annotations how to scrape data from similar pages.

Rancher is open source software that makes it simple for organizations to deploy a private container service and deliver Docker orchestration to users. Within a team, authorized users are able to create resource pools from any hosts, and then launch containers or application templates from Rancher’s UI or CLI. Users have complete control over how their applications are deployed, and Rancher provides all of the necessary infrastructure services such as networking, load balancing, and storage to ensure the application runs brilliantly on any infrastructure.

Matrix is an open standard for decentralised communication, providing simple HTTP APIs and open source reference implementations for securely distributing and persisting JSON over an open federation of servers.

Kinto is a lightweight JSON storage service with synchronisation and sharing abilities.

Mattermost is a self-hosted solution for bringing all your team communication to one place, and making it searchable and accessible anywhere

N1 is an open-source mail client built on the modern web with Electron, React, and Flux. It is designed to be extensible, so it's easy to create new experiences and workflows around email. N1 is built on the Nylas Sync Engine which is also open source free software.

Powerful slack-like open source group chat

Overtone is an open source audio environment designed to explore new musical ideas from synthesis and sampling to instrument building, live-coding and collaborative jamming. We combine the powerful SuperCollider audio engine, with Clojure, a state of-the-art lisp, to create an intoxicating interactive sonic experience.

Prometheus is an open-source systems monitoring and alerting toolkit originally built at SoundCloud. Prometheus's main features are:

• a multi-dimensional data model (time series identified by metric name and key/value pairs)
• a flexible query language to leverage this dimensionality
• no reliance on distributed storage; single server nodes are autonomous
• time series collection happens via a pull model over HTTP
• pushing time series is supported via an intermediary gateway
• targets are discovered via service discovery or static configuration
• multiple modes of graphing and dashboarding support

Taiga is a project management platform for startups and agile developers & designers who want a simple, beautiful tool that makes work truly enjoyable.

Buildbot is an open-source framework for automating software build, test, and release processes.

Oh-My-Zsh is an open source, community-driven framework for managing your ZSH configuration. It comes bundled with a ton of helpful functions, helpers, plugins, themes, and a few things that make you shout...

PredictionIO is an open source machine learning server for software developers to create predictive features, such as personalization, recommendation and content discovery.

Sign up to receive a different open issue in your inbox every day from your favorite GitHub repos